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path: root/drivers/video/via/vt1636.c
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Diffstat (limited to 'drivers/video/via/vt1636.c')
-rw-r--r--drivers/video/via/vt1636.c121
1 files changed, 41 insertions, 80 deletions
diff --git a/drivers/video/via/vt1636.c b/drivers/video/via/vt1636.c
index d65bf1aee87c..60e4192c2b34 100644
--- a/drivers/video/via/vt1636.c
+++ b/drivers/video/via/vt1636.c
@@ -23,6 +23,34 @@
#include <linux/via_i2c.h>
#include "global.h"
+static const struct IODATA common_init_data[] = {
+/* Index, Mask, Value */
+ /* Set panel power sequence timing */
+ {0x10, 0xC0, 0x00},
+ /* T1: VDD on - Data on. Each increment is 1 ms. (50ms = 031h) */
+ {0x0B, 0xFF, 0x40},
+ /* T2: Data on - Backlight on. Each increment is 2 ms. (210ms = 068h) */
+ {0x0C, 0xFF, 0x31},
+ /* T3: Backlight off -Data off. Each increment is 2 ms. (210ms = 068h)*/
+ {0x0D, 0xFF, 0x31},
+ /* T4: Data off - VDD off. Each increment is 1 ms. (50ms = 031h) */
+ {0x0E, 0xFF, 0x68},
+ /* T5: VDD off - VDD on. Each increment is 100 ms. (500ms = 04h) */
+ {0x0F, 0xFF, 0x68},
+ /* LVDS output power up */
+ {0x09, 0xA0, 0xA0},
+ /* turn on back light */
+ {0x10, 0x33, 0x13}
+};
+
+/* Index, Mask, Value */
+static const struct IODATA dual_channel_enable_data = {0x08, 0xF0, 0xE0};
+static const struct IODATA single_channel_enable_data = {0x08, 0xF0, 0x00};
+static const struct IODATA dithering_enable_data = {0x0A, 0x70, 0x50};
+static const struct IODATA dithering_disable_data = {0x0A, 0x70, 0x00};
+static const struct IODATA vdd_on_data = {0x10, 0x20, 0x20};
+static const struct IODATA vdd_off_data = {0x10, 0x20, 0x00};
+
u8 viafb_gpio_i2c_read_lvds(struct lvds_setting_information
*plvds_setting_info, struct lvds_chip_information *plvds_chip_info,
u8 index)
@@ -55,108 +83,41 @@ void viafb_init_lvds_vt1636(struct lvds_setting_information
int reg_num, i;
/* Common settings: */
- reg_num = ARRAY_SIZE(COMMON_INIT_TBL_VT1636);
-
- for (i = 0; i < reg_num; i++) {
+ reg_num = ARRAY_SIZE(common_init_data);
+ for (i = 0; i < reg_num; i++)
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info,
- plvds_chip_info,
- COMMON_INIT_TBL_VT1636[i]);
- }
+ plvds_chip_info, common_init_data[i]);
/* Input Data Mode Select */
- if (plvds_setting_info->device_lcd_dualedge) {
+ if (plvds_setting_info->device_lcd_dualedge)
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info,
- plvds_chip_info,
- DUAL_CHANNEL_ENABLE_TBL_VT1636[0]);
- } else {
+ plvds_chip_info, dual_channel_enable_data);
+ else
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info,
- plvds_chip_info,
- SINGLE_CHANNEL_ENABLE_TBL_VT1636[0]);
- }
+ plvds_chip_info, single_channel_enable_data);
- if (plvds_setting_info->LCDDithering) {
+ if (plvds_setting_info->LCDDithering)
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info,
- plvds_chip_info,
- DITHERING_ENABLE_TBL_VT1636[0]);
- } else {
+ plvds_chip_info, dithering_enable_data);
+ else
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info,
- plvds_chip_info,
- DITHERING_DISABLE_TBL_VT1636[0]);
- }
+ plvds_chip_info, dithering_disable_data);
}
void viafb_enable_lvds_vt1636(struct lvds_setting_information
*plvds_setting_info,
struct lvds_chip_information *plvds_chip_info)
{
-
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info, plvds_chip_info,
- VDD_ON_TBL_VT1636[0]);
-
- /* Pad on: */
- switch (plvds_chip_info->output_interface) {
- case INTERFACE_DVP0:
- {
- viafb_write_reg_mask(SR1E, VIASR, 0xC0, 0xC0);
- break;
- }
-
- case INTERFACE_DVP1:
- {
- viafb_write_reg_mask(SR1E, VIASR, 0x30, 0x30);
- break;
- }
-
- case INTERFACE_DFP_LOW:
- {
- viafb_write_reg_mask(SR2A, VIASR, 0x03, 0x03);
- break;
- }
-
- case INTERFACE_DFP_HIGH:
- {
- viafb_write_reg_mask(SR2A, VIASR, 0x03, 0x0C);
- break;
- }
-
- }
+ vdd_on_data);
}
void viafb_disable_lvds_vt1636(struct lvds_setting_information
*plvds_setting_info,
struct lvds_chip_information *plvds_chip_info)
{
-
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info, plvds_chip_info,
- VDD_OFF_TBL_VT1636[0]);
-
- /* Pad off: */
- switch (plvds_chip_info->output_interface) {
- case INTERFACE_DVP0:
- {
- viafb_write_reg_mask(SR1E, VIASR, 0x00, 0xC0);
- break;
- }
-
- case INTERFACE_DVP1:
- {
- viafb_write_reg_mask(SR1E, VIASR, 0x00, 0x30);
- break;
- }
-
- case INTERFACE_DFP_LOW:
- {
- viafb_write_reg_mask(SR2A, VIASR, 0x00, 0x03);
- break;
- }
-
- case INTERFACE_DFP_HIGH:
- {
- viafb_write_reg_mask(SR2A, VIASR, 0x00, 0x0C);
- break;
- }
-
- }
+ vdd_off_data);
}
bool viafb_lvds_identify_vt1636(u8 i2c_adapter)